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Diffstat (limited to 'src/mainboard/intel/galileo/gen2.h')
-rw-r--r--src/mainboard/intel/galileo/gen2.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/src/mainboard/intel/galileo/gen2.h b/src/mainboard/intel/galileo/gen2.h
index 10c832198e..253976e6df 100644
--- a/src/mainboard/intel/galileo/gen2.h
+++ b/src/mainboard/intel/galileo/gen2.h
@@ -1,7 +1,7 @@
/*
* This file is part of the coreboot project.
*
- * Copyright (C) 2016 Intel Corp.
+ * Copyright (C) 2016-2017 Intel Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -98,3 +98,15 @@ static const struct reg_script gen2_i2c_init[] = {
REG_SCRIPT_END
};
+
+static const struct reg_script gen2_tpm_reset[] = {
+ /* Reset the TPM using SW_RESET_N_SHLD (EXP1 P1.7):
+ * low, output, delay, input
+ */
+ REG_I2C_AND(GEN2_I2C_GPIO_EXP1, GEN2_GPIO_EXP_OUTPUT1, ~BIT7),
+ REG_I2C_AND(GEN2_I2C_GPIO_EXP1, GEN2_GPIO_EXP_CONFIG1, ~BIT7),
+ TIME_DELAY_USEC(5),
+ REG_I2C_OR(GEN2_I2C_GPIO_EXP1, GEN2_GPIO_EXP_CONFIG1, BIT7),
+
+ REG_SCRIPT_END
+};